/* 清除浮动 */
.clear { zoom: 1; }
.clear:after {
	content: '';
	display: block;	
	visibility: hidden;
	clear: both;
}
/* vertical-align 垂直对齐方式*/
/* 垂直对齐盒子 */
.va-box {
	/* 消除inline-block元素的间隙 */
	font-size: 0;
}
.va-box:before {
	content: '';
	width: 0;
	display: inline-block;
	height: 100%;
	vertical-align: middle;
	visibility: hidden;
}
.va-box>* {font-size: 16px;}
.vat,.vam,.vab{display: inline-block;}
.vat { vertical-align: top; }
.vab { vertical-align: bottom;}
.vam { vertical-align: middle; }
/* 水平对齐 */
.tac {text-align: center;}
.tal {text-align: left;}
.tar {text-align: right;}
/* marin设置 */
.mg-top-10 {margin-top: 10px;}
.mg-top-20 {margin-top: 20px;}
.mg-left-10 {margin-left: 10px;}
.mg-left-20 {margin-left: 20px;}

